docs: def create_response_pdu(self, data):
          """ Create response pdu.
  
          :param data: A list with values.
          :return: Byte array of at least 4 bytes.
          """
          log.debug('Create multi bit response pdu {0}.'.format(data))
          fmt = '>BB' + conf.TYPE_CHAR * len(data)
  
          return struct.pack(fmt, self.function_code, len(data) * 2, *data)